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JavaScript - $(document).ready(function() Or $(function()
Hello all. I have fairly simple questions regarding modifying this script: http://papermashup.com/create-a-dynamic-form-preview/ to dynamically show different parts of a form on another part of the page. I am looking to use it on most parts of my form and would like a little clarification.
First is the use of $(document).ready(function() or $(function(). It works using either, my question is which is preferred? As I understand it using $(document).ready(function() starts the DOM immediately on page load and is useful if you need something right away. I am also using this script: http://www.dynamicdrive.com/dynamici...formwizard.htm for the form. Since the preview script is being used with the form to wizard, I don't really need it until the rest of the form loads. Another question would be, is there a cleaner way to go about using the preview script on say 10 different form inputs independently? For example in a single function rather than 10 different function/updates? I have an example of what I am trying he http://jsfiddle.net/anhyG/1/ Thank you in advance for any help! Similar TutorialsIn Jquery, there are following two concepts 1. Document.ready 2. Window.onload How can i get to know when document is ready to use using pure javascript? Hi there. I want to slide in (jquery) a link in the bottom right when the page loads that offers the user to be pushed back to the top of the page. So far all is well. I have it appearing at width 1024 or bigger. With a media query set in order for it not to appear for smaller devices: #totop { position: fixed; bottom: 0; right: 10px; background: #FFF; color: #000; padding: 10px; -moz-border-radius: 5px 5px 0 0; border-radius: 5px 5px 0 0; display:block; -moz-box-shadow: 10px 10px 5px #000; -webkit-box-shadow: 10px 10px 5px #000; box-shadow: 10px 10px 5px #000; } @media screen and (max-width: 1023px) { #totop { display: none; /* Remove to top button */ } Now I understand I want an if statement checking whether the css is to display block or none. Or if this doesn't work have an if statement checking the screen width itself rather than media queries. So far I have this: $(document).ready(function() { if( $('#totop').is(':visible') ) { ("#totop").slideDown("slow"); } else { ("#totop").hide(); } }); Please help! All, I currently have this code to make a post to my database: Code: var $dataString = 'name='+ $name + '&black_white=' + $black_white + '&color=' + $color + '&color=' + $other + '&other_text=' + $text;
$.post("save_edits.php", {image_save_string: $dataString}, function(result) {
$("#multiple_images").hide();
$("#result_success").html("<font color='red'>We've successfully saved your photo edits!</font><br><br>");
$("#image_divs").html(result);
});
Within the result I'm actually recreating the form for them to use if they want. I have a decent amount of jQuery that got initialized when the original page was loaded. Once I get my new form it doesn't work because it wasn't originally included in the page initialization. Is there a way just to call the document.ready function again to have it reinitialize my form elements again? Thanks in advance. Hello codingforums! I'm new to javascript and have a problem regarding functions. I've been trying to create a slideshow, and while testing different syntax etc. I'm getting stuck at why this works: Code: document.images.portrait.src = img2.src; And not this: Code: function slideshow(){
document.images.portrait.src = img2.src;
}
Thanks for any help! Hi All, I have a problem in which I try to execute a funcition via a document.write() and it throws an "object expected" error. Overall I am making an interface for MS ACCESS .mdb table via ADODB using JavaScript and I want to be able to click on a link and the id is used to delete that entry. Code: My function is: Code: function deleteRecord(del)
{
var adoConn = new ActiveXObject("ADODB.Connection");
var adoRS = new ActiveXObject("ADODB.Recordset");
adoConn.Open("Provider=Microsoft.Jet.OLEDB.4.0;Data Source = {path to }knowBA.mdb'");
adoRS.Open("Select * From know where ID="+ del, adoConn, 1, 3);
adoRS.Delete;
adoRS.Close();
adoConn.Close();
}
The code using the funcition is - oh and the numric KEY is rs(0) : Code: if(!rs.bof) {
document.write("<table width='700' border='1' align='center' cellpadding='2' cellspacing='0' bgcolor='#FFFFFF'>");
rs.MoveFirst()
while(!rs.eof) {
document.write("<tr><td><div align='center'><strong>"+rs(1)+"</strong></div>");
document.write("<strong>Keyword(s):</strong> "+rs(3));
document.write("<br><strong>Entry:</strong> " +rs(2)+" ");
document.write("<A HREF='javascript:onClick=("+"eval(deleteRecord(" +rs(0)+"))"+")'>delete</A> ");
document.write("</td></tr>");
cnt=cnt+1;
rs.MoveNext()
}
document.write("</table></form>");
}
if (cnt==0){ alert ("Sorry, there are no results on that search.");}
rs.close()
cn.Close();
}
</script>
Thanks for any hints on how to accomplish this! Hi Coders, I have a javascript function which lets a user to choose one of the 7 option buttons on a "mainsub.asp" page and the page will then be forwarded to one of the 7 process pages depending on what has been chosen. The problem is that firefox is angry with the first line ("if" statement) and tells the following in its error console: Error: document.forms[0].C1 is not a function Source File: [localhost...] Line: 117 Here is the code: function fSubmit(){ if (document.forms[0].C1(0).checked) document.forms[0].action="process.asp"; else if (document.forms[0].C1(1).checked) document.forms[0].action="process1.asp"; else if (document.forms[0].C1(2).checked) document.forms[0].action="process2.asp"; else if (document.forms[0].C1(3).checked) document.forms[0].action="process3.asp"; else if (document.forms[0].C1(4).checked) document.forms[0].action="process4.asp"; else if (document.forms[0].C1(5).checked) document.forms[0].action="process5.asp"; else if (document.forms[0].C1(6).checked) document.forms[0].action="process6.asp"; else document.forms[0].action="process.asp"; return; } Internet explorer does not complain about anything and does its job great. But I could not figure out how to change the code to be also compliant with Firefox? Thanks for all the comments. Hello Pros. I am having a problem with getting id of the active element which calls function savePanelPosition(), as a result, I cannot get a new location of this element and pass it to my Page Method SaveCoords() All draggable panels are created dynamically in code-behind. Please, see the javascript code below. Any ideas/help are greatly appreciated function pageLoad() { var Max = "<%=qtyMax%>"; for (i = 0; i < Max; i++) { $find('DragP' + i).add_move(savePanelPosition); } } function savePanelPosition() { var elem = document.activeElement; var loc = $common.getLocation(elem); PageMethods.SaveCoords(elem, loc.x, loc.y); /* there is a call to PageMethods.SaveCoords(), but elem = objectHTMLBodyElement, loc.x=0, loc.y =0 */ } Hi, i have this jquery script on my photo galery page, it detects left and right key down on keyboard and acts uppon key down. Is there any way to deactivate it when I click on a text area that is located below each photo? this must be a common issue I think... Textareas id="comment_" Code: <script type="text/javascript">
$(document).keydown(function(e){
if (e.keyCode == 37) {
window.location = "photo.php?phot=$prev_file_p&p_id=$prev_file"
return false;
}
else if (e.keyCode == 39) {
window.location = "photo.php?phot=$next_file_n&p_id=$next_file"
return false;
}});
</script>
Hi, New to JS. Have ordered some new books, but need to get somethings going in the mean time. What I wanted to do is to link to a new page having a date range input in the form of 6 text boxes, 2 sets of mm-dd-yy, from and to, where the upon loading the page box 1 of the from would auto focus and then auto tab and then post where php could take over on the server side. Setting up the form and the lay out, no problem. Auto focusing went just like expected using the following code, included because on the next step everything fell apart. [/CODE] <script type="text/javascript" > window.onload=function() { document.getElementById("input1").focus(); } </script> [/CODE] So then the wheels came off and in response, began to simplify what was trying to be done to find where the issues were. As far as I can get working is: Code: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<script type="text/javascript" >
window.onload=function() {
document.getElementById("input1").focus();
}
</script>
<script type="text/javascript" >
function myFunc() {
alert("is this working");
}
</script>
</head>
<body>
<input id="input1" name="input1" type="text" onkeyup="myFunc()" maxlength="2" value="type a No." />
</body>
</html>
First issue with this: When I first get to the page everything is just as ordered. The focus is on the text box and the default value is "type a No." When I press a key onkeyup, I bring up the alert box with "is this working" in it. But when I refresh the page with the refresh button, after clicking the "ok" on the alert box, the character that was typed in is still displayed. If I use the link to the page, or the URL from the address bar, then the page reloads properly with the default value, "type a No". Question 1: How do you get the default textbox value using the refresh button as apposed to reloading the page using a link or from the address bar? Using Firefox 8.0 Second and more important at the moment: If I change the script to pass an argument to the function the script crashes. It does not pull up an alert box and freezes. My guess is that I'm doing something wrong on a concept level. NOTE: changed the default value of the text box to " ". Looked like to me there was an issue with the size specification and the default string length as you could only enter in a key stroke by highlighting the text and replacing it Code: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<script type="text/javascript" >
window.onload=function() {
document.getElementById("input1").focus();
}
</script>
<script type="text/javascript" >
function myFunc(awe) {
alert(awe);
}
</script>
</head>
<body>
<input id="input1" name="input1" type="text" onkeyup="myFunc("123")" maxlength="2" value="" />
</body>
</html>
Question 2: can someone straighten me out with this? Quote: <html> <head> <script type="text/javascript"> var a = january var b = febuary var c = march function test() { document.getElementById("test").innerHTML=a; <!-- needs to be A on first function click, b on second, c on third, etc..^^--> } </script> </head> <body> <p id="test"></p> <!-- the <p> should go to next month upon each function --> <input type="button" value="asdf" onclick="test()" /> </body> </html> I tried to explain it pretty well in the comment tags, thanks! ok so Code: document.write("Goodbye!");
works but I put ^ that inside a function Code: function SayHello ()
(
document.write("Goodbye!");
)
and it stops working? I know the function call works because when I place some code to display an image in SayHello function, it displays the image. Hi, I am facing a problem in passing replace() function as an argument in user defined java function, can any one help me how to resolve it? intention is to pass a file path to my user defined function, but before passing the path i want to replace the character '\' to '\\' I am posting my javascript function he <a href="#" onclick="OpenDocPreview('<%# Eval("PATH")%>'.replace(/\\/g,"\\\\"), '<%# Eval("Filename")%>')"><%# Eval("DocTitle") %></a> function OpenDocPreview(url, docname) { alert('message from search base : ' + url + ' ' + docname); } thank you, I was working on a tutorial for some ajax uploading stuff and I ran across a new function syntax I don't recognize. I am not a Javascript pro, but I am not a newbie either. here is the code I am working on: Code: function handleFileSelect(e){
var files = e.target.files;
var output = [];
for(var i=0,f;f=files[i];i++){
if(f.type.match('image.*')){
var reader = new FileReader();
reader.onload = (function(theFile){
return function(e){
var span = document.createElement('span');
span.innerHTML = ['<img class="thumb" src="',e.target.result,'" title="',theFile.nbame,'" />'].join('');
document.getElementById('list').insertBefore(span,null);
};
})(f);
reader.readAsDataURL(f);
}
}
document.getElementById('list').innerHTML = '<ul>'+output.join('')+'</ul>';
}
document.getElementById('files').addEventListener('change',handleFileSelect,false);
To be a little more clear, the code in question is that is the very middle. The syntax I don't understand is: Code: class.event = (function(arguments){
//stuff you put in a function...
})(more Arguments?);
I tried to customize a simple one to learn for myself and I wrote this: Code: var a = 'A';
var b = 'B';
test = (function(t){
alert(t);
alert(b);
})(b);
test(a);
The browser would alert 'B' and that's it. The console would tell me that 'test is not a function.' OK, so I am confused. The topmost code works. What I am wondering is what the syntax is called for creating a function (or event listener?) that way, and how it works. Although if I new what it was called I could just google how it works. <p> <script type="text/javascript">// <![CDATA[ var metrics = { "mm" : 1, "cm" : 10, "m" : 1000, "inch" : 25.4, "foot" : 304.8 }; function convert(num, dec){ var val = document.getElementById("fromVal").value; if(isNaN(val)){ return } function roundNumber(num, dec) { var result = Math.round( Math.round( num * Math.pow( 10, dec + 1 ) ) / Math.pow( 10, 1 ) ) / Math.pow(10,dec); return result; } document.getElementById("toVal").value = val * metrics[document.getElementById("fromSystem").value]/ metrics[document.getElementById("toSystem").value]; } var interval = null; function watchChanges(){ interval == null ? setInterval("convert()", 500) : clearInterval(interval); } // ]]></script> </p> <table> <tbody> <tr> <td><input id="fromVal" style="width: 100px;" onfocus="watchChanges()" onblur="watchChanges()" type="text" /><select id="fromSystem" onchange="convert()"> <option value="mm">millimeters</option> <option selected="selected" value="cm">centimeters</option> <option value="m">meters</option> <option value="foot">feet</option> <option value="inch">inches</option> </select></td> </tr> <tr> <td colspan="1" align="center">=</td> </tr> <tr> <td><input id="toVal" style="width: 100px;" type="text" disabled="disabled" /><select id="toSystem" onchange="convert()"> <option value="mm">millimeters</option> <option value="cm">centimeters</option> <option value="m">meters</option> <option selected="selected" value="foot">feet</option> <option value="inch">inches</option> </select></td> i keep getting error Call to undefined function codeandurl() below is my code PHP Code: <?php $value= strip_tags(get_field('link',$post)); $resultid=get_field('resultid',$post); codeandurl($resultid,$value); ?> <div id="result"></div> <script type="text/javascript"> function codeandurl(resultid,url){ $( "#result" ).text(resultid); $( "#result" ).dialog({ modal: true, buttons: { Ok: function() { $( this ).dialog( "close" ); } } }); window.open(url); return false; } </script> Hi All, I'm trying to convert an anonymous function to a real function (nesting is getting out of hand), however the msg object becomes undefined after conversion. Here is the converted anonymous function which fails: https://gist.github.com/2587613 and here is the original anonymous function which works: https://gist.github.com/2587667 Any help would be greatly appriciated I found this script, and it works great: Code: <script type="text/javascript">
function disable(element)
{
var input = document.getElementById(element).getElementsByTagName("input");
for(var i = 0; i < input.length; i++)
{
input[i].setAttribute("disabled","true");
}
}
</script>
I tried to make the inverse by simply reversing the setAttribute() like so: Code: <script type="text/javascript">
function enable(element)
{
var input = document.getElementById(element).getElementsByTagName("input");
for(var i = 0; i < input.length; i++)
{
input[i].setAttribute("disabled","false");
}
}
</script>
But that didn't do it. Can someone show me why, and how to fix it? Here's the sample form which I'm trying to test it on: Code: <form>
<input type="radio" name="test" onclick="disable('D1')" /> disable<br/>
<input type="radio" name="test" onclick="enable('D1')" /> enable<br/>
<fieldset id="D1">
<input class="" type="text" value="test value1" /><input class="" type="text" value="test value2" /><br/>
<input class="" type="text" value="test value3" /><input class="" type="text" value="test value4" /><br/>
<input class="" type="text" value="test value5" /><input class="" type="text" value="test value6" /><br/>
</fieldset>
</form>
Edit: The ultimate goal which I'm working toward now (step by step =) is to have a form more like: Code: <form>
<input type="radio" name="test" onclick="disable('D1')" />
<fieldset id="D1">
<input class="" type="text" value="test value1" /><input class="" type="text" value="test value2" />
</fieldset>
<input type="radio" name="test" onclick="disable('D2')" />
<fieldset id="D2">
<input class="" type="text" value="test value3" /><input class="" type="text" value="test value4" />
</fieldset>
<input type="radio" name="test" onclick="disable('D3')" />
<fieldset id="D3">
<input class="" type="text" value="test value5" /><input class="" type="text" value="test value6" />
</fieldset>
</form>
And have the fieldsets enable and disable according the selection of the radio buttons. Also, the fieldsets (and their ID's) will be dynamically generated via PHP Thanks-a-bunch, ~ Mo Hi! I'm trying to toggle a class and one works and the other does not and I don't know why. I'm just getting my feet wet with jquery and javascript and I figured this was a pretty easy task to take on! Maybe. Link to the page: Franklin Township Soccer Club - Change Field Status My sad, sorry attempt =| Code: $( "li.open" ).click(function() {
$( this ).toggleClass( "closed" );
});
$( "li.closed" ).click(function() {
$( this ).toggleClass( "open" );
});
The first function works with open, so I figured I'd just use opposite on closed! Ha! I don't think so! In the end within those function there is an element in a form on that page it's hidden. I'd like to change the value from a 0 to 1 for vice versa. That' will be my next step. If you could give me a little nudge in the right direction I'd appreciate it! But first understanding why one works and the other does not, that is the primary mission! I do appreciate any help given! Dave How can I call a PHP Function inside a Javascript Function? This is what I have so far, but I don't think I'm doing it the right way. Any suggestions? PHP Code: <?php function phpQuery(){ $query = mysql_query("INSERT INTO mytable VALUES('','name','email')"); } ?> <script type="text/javascript"> function delayQueries() { timeoutID = window.setTimeout(doQueries, 2000); } function doQueries() { var runQuery = "<?php phpQuery(); ?>"; } </script> Hi, Any one help me In one variable i have some data ex: var data = document.getElementById("imageId").value; I want to pass this data to another function inside another function ex: var button1 = '<img src="images/Remove-button.gif" width="70" height="15" onclick="removeVerifyImageRow(this),saveLibData('+data+')"/>'; while running the application i am getting an error incase if the data is string ex:if data is 'image1' i am getting an error, but with number there is no problem ex: if data is '1122'. this is very urgent to solve this problem plz any one help me |
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